Dhiyabhorosi yeRocket Fuel Inowanikwa muZvinyorwa Zema Letusi
Mumakore gumi apfuura, kuputika kwezvokudya kwemvura kwakaonekwa sechinetso chemunharaunda kana chekune dzimwe nyika, uye zvakawanikwa kubva kuEvironment Working Group zvakagadzira kusvibiswa kwezvinhu zvakasiyana-siyana nyaya yenyika-kunokonzerwa nekugadziriswa kwekuchengetedza kubva kune Environmental Protection Agency (EPA).
Kutsvakurudza kwakaratidza kuti lettuce yakakura mukudarika uye mwedzi yechando muSouth California kana kuArizona inogona kuva nehuwandu hwehutu hwemotokari yeproduct, inopenya kupfuura inofungidzirwa yakachengeteka neEPA maererano neongororo dzakazvimirira dzebhishopi dzakatumirwa ne Environmental Working Group (EWG).
IEWG inoti kungoita kudya lettuce, mamiriyoni 1,6 emadzimai eAmerica ekuzera kuberekwa ari kuzarura zuva nezuva mukati memwedzi yechando kusvika kune imwe nzvimbo yakawanda kupfuura yeEPA inorayirwa chirwere chakachengeteka.
Maererano nemishumo yevhidhiyo, sulumusi sampuli yaiva nehuwandu hwakawanda hwekutsvaira. Imwe, iyo yaive yakasiyana-siyana yakasanganiswa yezvisikwa zvakasanganiswa nevana, yaive nehuwandu hwehutachiona hwakapetwa hunofungidzirwa ka20 kanopfuura huwandu California ikozvino hunoona yakachengeteka pamvura yekunwa. Mamwe acho aive nemapuroreta emitengo yakapetwa katanhatu kupfuura chikwata chekuchengetedzwa kweCalifornia.
Perchlorate inosvibisa inenge iri mumhepo sechikamu chemamwe mapurisa akadai samammonium, potassium, kana sodium perchlorate. Ammonium perchlorate inoumbwa seyakisi-inowedzera chikamu mune zvakasimba mafuta zvinokonzera ma rocket, misoro, uye zviputi.
Mune miedzo yekutengesa muzvigadzirwa zvepasitetiti, 18 muzana yeettuce sampuli dzaive nehuwandu hwehutachiona hwehutachiona, uye nehuwandu hwekushanda kwetukutu hwakasvibiswa hwaive ne 4 kanowedzera kupfuura imwechete pane EPA inoti yakachengeteka mumvura yekunwa.
Izvo zvinobva kune inoplorate, maererano neEWG, inowanzove iyo River Colorado, iyo yakasvibiswa-yakasvibiswa nemvura inodiridza kupfuura 1.4 million acres muCalifornia neArizona.
Kuongorora kweEWG pamiti yekutengesa kwakatsigira kutsvakurudza kwakapfuura pamusoro pekuita kwemafuro ekukura kwema lettuce uye hosi-yakakura lettuce, kare, uye sipinashi.
"Zvatakawana uye zviyero zvekare zvakaratidza kuti dutu rekutsvaira kwema rocket harisi dambudziko remunharaunda munzvimbo umo mvura yekunwa yakasvibiswa, asi kunetseka kwenyika kune vose vanodya lettuce yechando," akadaro Renee Sharp, muongorori mukuru muEWG California office uye co-munyori wemushumo. "
Perchlorate, iyo inoputika ye rocket uye missile mafuta, inogona kukanganisa utachiona hwekodzero yekuita mahomoni anokosha. Pamusana pekuberekwa, vacheche nevana, kuvhiringidzika muhutachiona hwehutori kunogona kukonzera kuderedza IQ, kupera kwepfungwa, kurasikirwa kwekunzwa uye kutaura, uye kukanganisa kwemagetsi.
Perchlorate inosvibisa mvura inodarika 500 yekunwa mumatunhu makumi maviri, inoshumira vanhu vanopfuura mamiriyoni makumi maviri. Pakati pezvinhu zvakasvibiswa zvakasvibiswa ndiRood River, iyo isingori kupa mvura yekunwa yeLos Angeles, Phoenix, Las Vegas nedzimwe maguta, asiwo inonwisa 70 muzana yetukutu rwenyika yakakura kubva munaOctober kusvika March. Pakati pe15 dzinotungamirira kururekure-dzimba dzinokura muU.S., 10 dzave dzichiziva kana kuti dzinofungidzira zvinyorwa zvekusvibiswa kwemhepo.
Panguva imwecheteyo, nepo huwandu hwehutachiona hunopararira munyika yose hunobva kune zvigaro zvehondo kana michero inoshandiswa nevashandi vekudzivirirwa kwehurumende, White House yakakumbira Congress kuti irege kudzivirira zvivako kubva mumitemo yakawanda yezvakatipoteredza, kusanganisira kucheneswa kwezvinotyisa zvinotyisa.
US Sen. Barbara Boxer, D-Calif., Uye Hurumende Sen Sen Nell Soto, D-Ontario, mumwe nomumwe akaisa zvikwereti zvinoda kuti vanhu vose vapfuura uye vemazuva ano vashandise vashandise kuti vazivise kushandiswa kwavo, nzira yekurasa uye nhoroondo yekudonha.
Nezve Perchlorate
Kunetseka pamusoro pekutsvaga kwemafuro kwakange kuripo kubva muna 1997.
Perchlorate inopesana ne iodide inopinda murosi yeganda. Nokuti iodide iyo inokosha inhengo yehomoni yehutachiona, kupisa kwechirwere kunokanganisa kuti utachiona hunoshanda sei. Muvanhu vakuru, utachiona hunobatsira kutarisa kushandiswa kwemagetsi. Muvana, utachiona hunoita basa guru mukusimudzirwa kwakanaka kune kuwedzera kwemetabolism.
Kukanganiswa kwetachiona basa mumadzimai vanotarisira kunogona kukonzera fetus nechechecheche uye zvinoguma nemigumisiro kusanganisira kuchinja kwehutsika, kunonoka kukura uye kuderedza kudzidzira kukwanisa.
Kuchinja kwehutachiona hwehomoni kunogonawo kukonzera utachiona hwemaperembudzi. Kuongorora kweEPA kwehutachiona hwekutengesa ndechokuti kuputika kwekuvhiringidzika kweiodide kukwira ndicho chiitiko chikuru chinotungamirira kuchinjeko kana kukura.
Maererano neCalifornia Environmental Protection Agency, zvidzidzo zvinoratidza kuti kuputika kunokanganisa utachiona hunoita hutoni, hunoita kuti hypothyroidism uye zvisingawanzoitiki, utachiona hwetachiona. Ngozi inonyanya kukosha kuvakadzi vane pamuviri, vana, uye vanhu vane matambudziko ehutano kana kukanganisa zvirwere zvehutano.
EPA Inotarisana neMirairo Yokutsvaga
Kuziva dambudziko rekutsvaira, EPA yakatumidza iyo kemukati sechinhu chakaipa. Iyo sangano inoratidza nzira dzomukati muhutumbi hwevanhu uye dzinoisa mitemo yekufunga sokusvibiswa. Chiito chekutonga chinoramba chichikura nekukomberedza kwezvakatipoteredza kuti zvive nehuwandu hwehurumende nehurumende.